The Eshopps 3rd Generation Reef Sump design offers quiet and easy operation, allowing you to enjoy the natural beauty of your aquarium in any room of your home! The spill-over design and quick removal of the micron bag takes away all of the hassle of running a wet/dry filter, while still keeping your water clean and clear! The filter includes three convenient compartments for each stage of your filtration.

Compartment 1: The reef aquarium design includes three compartments. Water enters the filter through the micron bag, where it filters out large particles of fish waste and debris. The micron bag is designed for quick removal -- just open the lid and grab the micron bag by the handle!

Compartment 2: Water then moves to the skimmer compartment, where smaller particles and dissolved waste can be removed by your protein skimmer (sold separately).

Compartment 3: After passing through a prefilter sponge, water makes it to the return compartment where your return pump (sold separately) sends your filtered water back to your aquarium!

The RS-100 model includes a single intake with a 7 in. micron bag and is rated for reef aquariums 75-125 gallons.